there has been a major snag in the negotiations toward a fiscal cliff deal with fewer than two days remaining on the countdown clock, dana bash is on capitol hill. tell us what the main point of contention is now. >> there are few according to sources in both parties. the biggest one when it comes to the democrats, from their point of view, is the fact that republicans in an offer that they made last night included what is known as chained cpi in laymen's terms and in terms that matter to many americans, it would effectively make social security checks lower each month. >> we learned this from sources earlier. the senate majority leader, harry reid went to the senate floor and talked about the snag. list ton what he said. >> the one thing i do want to mention is that we're not going to have any social security cuts at this stage, that doesn't seem appropriate. we're open to just discussion about entitlement reforms, but we're going to have to take it in a different direction, the present status will not work. we're willing to make concessions as part of a balanced comprehensive agreement. but